Life BEYOND Mars?

Daniel P. Glavin, an astrobiologist at NASA’s Goddard Space Flight Center, says the possibility of extraterrestrial life in our solar system is not limited to Mars; other “habitable” worlds might exist including the icy Moons of Jupiter and Saturn, known as Europa and Enceladus. The challenge for scientists and engineers in the next couple of decades, he says, will be to design miniaturized instruments and technologies capable of detecting the signatures of life in our own solar system and beyond.